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New television not connecting to cable box

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New television not connecting to cable box

I have a new TV and have connected to cable box via HDMI cable.  Have tried numerous times and it doesn't seem to be connection problem from TV, as other devices are connecting fine.  Box is Motorola DCX3200.  Is it possible that this is just old an incompatible with newer television technology?

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Diamond Problem Solver

Re: New television not connecting to cable box

How did you hook up your last tv? Are you paying for HD? Are you sure you are on the proper tv input?

I am a Retired Official Comcast Employee
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New Poster

Re: New television not connecting to cable box

I'm not sure I'm paying for HD - that may be the issue.  I used to have both HDMI and coax connected.  But it didn't seem that the tv was recognizing the coax so I figured it wasn't necessary.

Problem Solver

Re: New television not connecting to cable box


@TS101815 wrote:

I have a new TV and have connected to cable box via HDMI cable.  Have tried numerous times and it doesn't seem to be connection problem from TV, as other devices are connecting fine.  Box is Motorola DCX3200.  Is it possible that this is just old an incompatible with newer television technology?


What make/model TV do you have?  Have you tried a different HDMI cable?

Joe V
(not a Comcast employee, just another paying customer)
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New Poster

Re: New television not connecting to cable box

Sony Bravia XBR-85X80H.  Yes, I have tried a different HDMI cable.

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Problem Solver

Re: New television not connecting to cable box


@TS101815 wrote:

Sony Bravia XBR-85X80H.  Yes, I have tried a different HDMI cable.


And you've tried all the HDMI inputs?  And checked each of the HDMI input settings for anything to toggle?

Joe V
(not a Comcast employee, just another paying customer)
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New Poster

Re: New television not connecting to cable box

I have.  I have also tried attaching the coax and HDMI as I had to prior television and it doesn't seem to be making any difference.  It is clearly making a connection because using the tv remote I can turn the cable box on and off.  It is just not connecting to the programming at all.

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Problem Solver

Re: New television not connecting to cable box


@TS101815 wrote:

I have.  I have also tried attaching the coax and HDMI as I had to prior television and it doesn't seem to be making any difference.  It is clearly making a connection because using the tv remote I can turn the cable box on and off.  It is just not connecting to the programming at all.


What make/model was your old TV that worked?

Joe V
(not a Comcast employee, just another paying customer)
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Diamond Problem Solver

Re: New television not connecting to cable box

Some boxes the hdmi isn’t activated if you aren’t paying for hd. Or the hdmi never worked and you we’re watching on a coax connection. Do you have another tv or different box to hook up

I am a Retired Official Comcast Employee
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
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Problem Solver

Re: New television not connecting to cable box


@TS101815 wrote:

I have a new TV and have connected to cable box via HDMI cable.  Have tried numerous times and it doesn't seem to be connection problem from TV, as other devices are connecting fine.  Box is Motorola DCX3200.  Is it possible that this is just old an incompatible with newer television technology?


There are numerous Motorola DCX3200 models.   Maybe a visit to an Xfinity store, if convenient, to upgrade your TV box.

Joe V
(not a Comcast employee, just another paying customer)
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New Poster

Re: New television not connecting to cable box

Samsung UN32EH5000F

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New Poster

Re: New television not connecting to cable box

Thanks.  I think a visit to the xFinity store may be my only option.  

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New Poster

Re: New television not connecting to cable box

Thanks, I may just need to visit the xfinity store to determine what the deal is.  The only other tv is my old Samsung.  No other cable box, but I'll just have to see if I need to upgrade the box or service (to HD).